Proceedings of the New Zealand Weed and Pest Control Conference, Volume 391986 - Pesticides |
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Page 147
... establish what the minimum velocity should be , but , by observation , air velocities of about 15 m / sec in the ... established whether low volume applications would provide adequate long term control of greedy scale . An assessment ...
... establish what the minimum velocity should be , but , by observation , air velocities of about 15 m / sec in the ... established whether low volume applications would provide adequate long term control of greedy scale . An assessment ...
Page 175
... establish in the fertilized swards . Phosphate appeared to increase the resistance to 2,4 - D of established ragwort plants . INTRODUCTION Ragwort occurs as a pasture weed over a wide range of soil types and fertility levels ...
... establish in the fertilized swards . Phosphate appeared to increase the resistance to 2,4 - D of established ragwort plants . INTRODUCTION Ragwort occurs as a pasture weed over a wide range of soil types and fertility levels ...
Page 176
... Established plants ( assessed 25.11.83 ) Ragwort plants / 100 m2 0 70 0 50 0 50 388 323 123 128 291 329 156 188 P main effect significant ( P > 0.05 ) . No N effect . RESULTS AND DISCUSSION Tables 1 and 2 summarise the effects of ...
... Established plants ( assessed 25.11.83 ) Ragwort plants / 100 m2 0 70 0 50 0 50 388 323 123 128 291 329 156 188 P main effect significant ( P > 0.05 ) . No N effect . RESULTS AND DISCUSSION Tables 1 and 2 summarise the effects of ...
Contents
Author Index | 9 |
PASTURE PESTS | 15 |
Field testing of seed protectants against black field cricket attack | 22 |
Copyright | |
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39th N.Z. Weed adult alachlor aphid application asparagus assessed atrazine beetle benomyl biological control buprofezin BYDV Californian thistle captafol chemicals chlorpyrifos clopyralid cover crawlers crop damage density diazinon discoideus disease DSIR effect eggs fensulfothion field foliage formulation fruit fungicides glyphosate gorse grass grub greedy scale growers growth haloxyfop EE harvest herbicides hexazinone increased infested insect insecticide insensitive instar kg ai/ha kiwifruit larvae leaf litres litres/ha lucerne metalaxyl metsulfuron mg ai/litre miticides mortality nematodes numbers orchard P.O. Box Palmerston North paraquat parasite pasture pathogens persimilis Pest Control Conf pesticides plants plots population porina Proc prochloraz ragwort rates reduced regrowth replicates Research residues root Ruakura ryegrass samples season seed treatments seedlings significant significantly Silwet Sitona soil spears species spray sprayer surfactant Table tamarillo tested trees trials trifluralin untreated control vinclozolin vines Weed and Pest weed control weeks whitefly yield Zealand